| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 02/10/2004 | US6690666 Packet modulation for DSL |
| 02/10/2004 | US6690251 Tunable ferro-electric filter |
| 02/10/2004 | US6690176 Low-loss tunable ferro-electric device and method of characterization |
| 02/10/2004 | CA2300579C Technique for effectively communicating multiple digital representations of a signal |
| 02/10/2004 | CA2103980C Single digital modem encoder to generate a twin qam signal for advanced digital television (adtv) |
| 02/05/2004 | WO2004012463A2 Start-up automatic frequency control (afc) method and apparatus |
| 02/05/2004 | WO2004012452A1 Apparatus and method for recovery symbol timing in the ofdm system |
| 02/05/2004 | WO2004012441A1 Digital signal processing reception device and method |
| 02/05/2004 | WO2004012411A1 Mirror translation loop transmitter architecture |
| 02/05/2004 | WO2004012409A1 Detection and compensation of constellation impairments |
| 02/05/2004 | WO2004012380A1 Data processor and method for processing data |
| 02/05/2004 | WO2004012366A1 Apparatus and method for improved performance in mc-cdma radio telecommunication systems that use pulse-shaping filters |
| 02/05/2004 | WO2004012353A1 Methods and systems for improved adsl performance |
| 02/05/2004 | WO2003100986A3 Data detection method for mimo-ofdm communication systems |
| 02/05/2004 | WO2003094460A3 Mobile station loop-back signal processing |
| 02/05/2004 | WO2003088509A3 Data-directed frequency-and-phase lock loop for decoding an offset-qam modulated signal having a pilot |
| 02/05/2004 | WO2003081768A3 Improving the efficiency of power amplifiers in devices using transmit beamforming |
| 02/05/2004 | WO2003071728A3 Method and apparatus for adapting multi-band ultra-wideband signaling to interference sources |
| 02/05/2004 | US20040025102 Encoding device and method and decoding device and method |
| 02/05/2004 | US20040025101 Data processing apparatus and data processing method |
| 02/05/2004 | US20040023620 Interface between digital and analog circuits |
| 02/05/2004 | US20040022375 System and method for communicating data during an audio conference |
| 02/05/2004 | US20040022335 Apparatus and methods for suppression of interference among disparately-modulated signals |
| 02/05/2004 | US20040022333 Start-up automatic frequency control (AFC) method and apparatus |
| 02/05/2004 | US20040022329 Single chip CMOS RF receiver included PLL therein |
| 02/05/2004 | US20040022328 Method and apparatus for increasing the quality of the receiver synchronization of qam or cap modulated modem connection |
| 02/05/2004 | US20040022326 Digital audio receiver |
| 02/05/2004 | US20040022310 ADSL modem apparatus and ADSL modem communication method |
| 02/05/2004 | US20040022309 Multiple modem apparatus |
| 02/05/2004 | US20040022307 Turbo-coding DOCSIS information for sate ilite communication |
| 02/05/2004 | US20040022272 System and method for communication channel and device control via an existing audio channel |
| 02/05/2004 | US20040022270 ADSL modem apparatus and ADSL modem communication method |
| 02/05/2004 | US20040022215 Diversity receiver, and method for receiving orthogonal frequency division multiplex signal |
| 02/05/2004 | US20040022183 System and method for transmitting data in a multiple-branch transmitter-diversity orthogonal frequency-division multiplexing (OFDM) system |
| 02/05/2004 | US20040022177 Adaptive modulation and coding |
| 02/05/2004 | US20040022176 Base station apparatus, mobile station apparatus, radio communication system, and radio communication method |
| 02/05/2004 | US20040022175 Method and orthogonal frequency division multiplexing (ofdm) receiver for reducing the influence of harmonic interference on ofdm transmission systems |
| 02/05/2004 | US20040022174 Channel estimation in orthogonal frequency-division multiplexing (OFDM) systems |
| 02/05/2004 | US20040022004 Semiconductor integrated circuit device, wireless LAN system, and auto gain control system |
| 02/05/2004 | US20040021595 Method and system for implementing a sigma delta analog-to-digital converter |
| 02/05/2004 | US20040021523 Phase and amplitude digital modulation circuit and method |
| 02/05/2004 | US20040021516 Distortion compensation apparatus |
| 02/05/2004 | US20040021510 Demodulation method and demodulator |
| 02/05/2004 | DE10331893A1 Verfahren zum Sparen von Leistung durch Reduzierung der Zeit des aktiven Empfangs im Standby-Betrieb Method for conserving power by reducing the period of active reception in standby mode |
| 02/05/2004 | DE10248042A1 OFDM secure digital data transmission system has receiver processing signal or bit level combinations of data packets sent at different times with different scrambling and interleaving |
| 02/05/2004 | DE10234166A1 OFDM signal I/Q imbalance estimation computer program procedure uses iterative solution of system of partial differential equations from log likelihood cost function |
| 02/05/2004 | DE10232195A1 Verfahren und Vorrichtung zum Messen der Symbolrate eines digital modulierten Hochfrequenzsignals Method and apparatus for measuring the symbol rate of a digitally-modulated high-frequency signal |
| 02/05/2004 | DE10230150A1 Einrichtung und Verfahren zur Bestimmung der Abweichung der Trägerfrequenz eines Mobilfunkgeräts von der Trägerfrequenz einer Basisstation Means and method for determining the deviation of the carrier frequency of a mobile device from the carrier frequency of a base station |
| 02/04/2004 | EP1387557A2 ADSL communication method |
| 02/04/2004 | EP1387556A1 ADSL modem apparatus and ADSL modem communication method |
| 02/04/2004 | EP1387546A2 Turbo-coding DOCSIS information for satellite communication |
| 02/04/2004 | EP1387545A2 Multicarrier transmission with adaptation to channel characteristics |
| 02/04/2004 | EP1387544A2 Synchronisation in multicarrier receivers |
| 02/04/2004 | EP1387543A2 Reduction of PAPR in multicarrier signals |
| 02/04/2004 | EP1387542A2 Symbol and hyperframe synchronisation in an ADSL modem |
| 02/04/2004 | EP1387541A2 Reduction of peak to average power ratio |
| 02/04/2004 | EP1387540A2 Method and apparatus for modulation, using a constellation of at least dimensions |
| 02/04/2004 | EP1387517A1 Adaptive modulation and coding |
| 02/04/2004 | EP1387496A2 Satellite communication system utilizing low density parity check (LDPC) codes |
| 02/04/2004 | EP1386462A1 System for generating pseudorandom sequences |
| 02/04/2004 | EP1386458A1 A hybrid frequency-time domain equalizer |
| 02/04/2004 | EP1386435A1 Method and device for transmitting data in a multi-carrier system comprising parallel concatenated coding and modulation |
| 02/04/2004 | EP1386405A2 High-quality power ramping in a communications transmitter |
| 02/04/2004 | EP1203457B1 Reception method and receiver array for a duplex transmission system |
| 02/04/2004 | EP1183841B1 Compensation of mismatch in quadrature devices |
| 02/04/2004 | EP1125407B1 Method for ask demodulation and ask demodulator |
| 02/04/2004 | EP1087536B1 Mobile communication terminal |
| 02/04/2004 | EP1013042B1 Prototype signal construction for multicarrier transmission |
| 02/04/2004 | EP0894367B1 Method and apparatus for interference rejection with different beams, polarizations, and phase references |
| 02/04/2004 | EP0800730B1 Method for the dynamic reconfiguration of a time-interleaved signal, and corresponding receiver and signal |
| 02/04/2004 | CN2602550Y 无线信号收发器 A wireless signal transceiver |
| 02/04/2004 | CN1473448A Base station apparatus, mobile station apparatus, radio communiation system, and radio communication method |
| 02/04/2004 | CN1473430A Mixed-media telecommunication call set-up |
| 02/04/2004 | CN1473392A Direct digital amplitude modulator |
| 02/04/2004 | CN1472905A CDMA receiver system with digital AGC |
| 02/04/2004 | CN1472904A CDMA receiver system with digital AGC |
| 02/04/2004 | CN1472903A CDMA receiver system (II) with digital AGC |
| 02/04/2004 | CN1472900A Method for estimating carrier, frequency shifts of orthogonal FDM communication system |
| 02/04/2004 | CN1137556C Method and system for multiplexing of multiple users for enhanced capacity radio communications |
| 02/04/2004 | CN1137548C Method and device for inspecting spread spectrum signals |
| 02/03/2004 | US6687507 Time of arrival estimation for edge/GSM |
| 02/03/2004 | US6687492 System and method for antenna diversity using joint maximal ratio combining |
| 02/03/2004 | US6687372 Pure delay estimation |
| 02/03/2004 | US6687370 Method and an arrangement for securing an ADSL connection |
| 02/03/2004 | US6687368 Tone signal detecting method and tone signal detector |
| 02/03/2004 | US6687316 High resolution correlator technique for spread spectrum ranging system code and carrier multipath mitigation |
| 02/03/2004 | US6687315 Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing |
| 02/03/2004 | US6687314 Method and apparatus for performing analog mode operations when receiving data and signaling tones in a wireless TDMA system |
| 02/03/2004 | US6687313 Digital television receiver converting vestigial-sideband signals to double-sideband AM signals before demodulation |
| 02/03/2004 | US6687311 Direct QAM modulator with digital feedback control and complex pre-equalization for phase and amplitude distortion |
| 02/03/2004 | US6687310 Trellis coded modulation system for digital television signal with trellis coded data and synchronization symbols |
| 02/03/2004 | US6687309 System for estimating carrier frequencies of quadrature amplitude modulated signals having high symbol rates |
| 02/03/2004 | US6687307 Low memory and low latency cyclic prefix addition |
| 02/03/2004 | US6687291 Time-domain equalizer of cascaded filters for VDSL |
| 02/03/2004 | US6687290 Apparatus for frequency deviation estimation and method of estimating the same |
| 02/03/2004 | US6687289 Method for measuring the attenuation in digital transmission lines |
| 02/03/2004 | US6687261 Multiple channel system for a twisted pair telephone wire local loop system |
| 02/03/2004 | US6686972 VSB reset to minimize data loss |
| 02/03/2004 | US6686879 Method and apparatus for transmitting and receiving signals having a carrier interferometry architecture |
| 02/03/2004 | US6686861 Slice circuit capable of accurate conversion of an analog signal to a digital signal |